Acid–base controllable nanostructures and the fluorescence detection of H₂PO₄⁻ by the molecular shuttling of tetraphenylethene-based [2]rotaxanes

Abstract

Aggregation-induced emission (AIE)-active switchable [2]rotaxanes with two arm-terminated TPE units synthesized by click reaction can induce various acid-base controllable nanostructures and exhibit selective detection of H₂PO₄⁻ ion.